Petroleum Reservoir Evaluation and Development >
2023 , Vol. 13 >Issue 4: 474 - 483
DOI: https://doi.org/10.13809/j.cnki.cn32-1825/te.2023.04.009
Application of PCA plus OPLS method in rapid reserve production rate prediction of shale gas wells
Received date: 2022-04-08
Online published: 2023-09-01
In southern Sichuan, thousands of shale gas wells have been drilled, generating a vast amount of high-dimensional data during geological evaluation, drilling, and production processes. Predicting reserve recovery ratios through data exploration and analysis is essential for guiding the exploration and development of shale gas resources. To achieve this goal, a novel approach is introduced, which couples principal component analysis（PCA） and orthogonal partial least square（OPLS） analysis, enabling rapid and accurate prediction of reserve production degree. The new method is put to the test using Zhaotong shale gas well samples to evaluate its effectiveness in predicting reserve recovery ratios. The results show that the average accuracy of reserve recovery ratio prediction using PCA-OPLS method surpasses the anticipated result, that this algorithm can swiftly and precisely predict recovery ratios. With its advantages of simplicity, high accuracy, and promising application prospects, this method holds great potential for efficiently evaluating the production and recovery ratios of shale gas reserves.
Honglin LIU , Shangwen ZHOU , Xiaobo LI . Application of PCA plus OPLS method in rapid reserve production rate prediction of shale gas wells[J]. Petroleum Reservoir Evaluation and Development, 2023 , 13(4) : 474 -483 . DOI: 10.13809/j.cnki.cn32-1825/te.2023.04.009
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